I think it’s D................
Given Information:
Initial speed = u = 3.21 yards/s
Acceleration = α = 1.71 yards/s²
Final speed = v = 7.54 yards/s
Required Information:
Distance = s = ?
Answer:
Distance = s = 13.61
Explanation:
We are given the speeds and acceleration of the runner and we want to find out how much distance he covered before being tackled.
We know from the equations of motion,
v² = u² + 2αs
Where u is the initial speed of the runner, v is the final speed of the runner, α is the acceleration of the runner and s is the distance traveled by the runner.
Re-arranging the above equation for distance yields,
2αs = v² - u²
s = (v² - u²)/2α
s = (7.54² - 3.21²)/2×1.71
s = 46.55/3.42
s = 13.61 yards
Therefore, the runner traveled a distance of 13.61 yards before being tackled.
a.) the belief that stars and planets revolve around the earth
Explanation:
The geocentric model of stars and planets is the belief that stars and planets revolves around the earth.
The model places the earth at the center of the system.
- Geo - earth ; centric - center
- This was the original school of thought about the way the earth relates to other bodies in the universe.
- This model was replaced by the heliocentric universe in which stars are at the center and the planets revolves round them.
- The idea was put forward by Nicola Copernicus
learn more:
Energy of the sun brainly.com/question/1140127
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Florine is special becaus Florine is at the highest value of electronegative value with 4.0
<span>When light passes through a prism it is separated into its component colors</span>
